18229548 has 12 divisors (see below), whose sum is σ = 42535640. Its totient is φ = 6076512.

The previous prime is 18229537. The next prime is 18229573. The reversal of 18229548 is 84592281.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759553 + ... + 759576.

Almost surely, 2^18229548 is an apocalyptic number.

It is an amenable number.

18229548 is an abundant number, since it is smaller than the sum of its proper divisors (24306092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18229548 is a wasteful number, since it uses less digits than its factorization.

18229548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519136 (or 1519134 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 18229548 is about 4269.6074761036. The cubic root of 18229548 is about 263.1834850427.

The spelling of 18229548 in words is "eighteen million, two hundred twenty-nine thousand, five hundred forty-eight".